20 Oct '11, 6pm

Are 'quantum levitation' trains in our future?

A few places around the internet are calling this phenomenon -- quantum levitation -- the first step to magical hover-trains. This is probably not true, according to my physics source (it's my husband). Maglev trains use superconducting magnets, but that's just a type of electromagnet -- it has nothing to do with the Meissner effect, which is what's being demonstrated here. Also, the disk they're levitating includes a sapphire wafer , which is maybe not a sustainable train-building material. Plus, that smoke's not for show; the effect only works when the disk is very very cold. But who cares, really? This is amazing to watch, and it's fun to imagine how it might affect our pubilc transit system.

Full article: http://www.grist.org/list/2011-10-20-quantum-levitation-p...

Tweets

Solar power’s ‘nasty little secret’ isn’t nasty...

grist.org 20 Oct '11, 11am

Is Burgess a whistle-blower or just a wily businessman? Photo: Steven Depolo Cross-posted from The Phoenix Sun . The charg...

Pollution is not the secret to job creation

Pollution is not the secret to job creation

grist.org 21 Oct '11, 8pm

Pollution is not the solution. Cross-posted from Real Climate Economics . Paul Krugman's column in The New York Times Thur...

#twitter Twitter index: "really cool" quantum l...

sg.news.yahoo.com 18 Oct '11, 9am

“My jaw was literally dropped watching this. No, I really mean ‘literally,’” “Quantum Levitation. If somebody had shown me...

Ugg's amazing clutch

thebaglady.tv 20 Oct '11, 5pm

This gorgeous navajo-inspired clutch gave us serious palpitations when it dropped in our inbox earlier this afternoon. And...

German Trains To Run on 100% Renewables

treehugger.com 21 Oct '11, 4pm

With 20% of its energy coming from renewables , Germany is already a world leader in this sector and recently passed even ...